Pneumatic-rubber-tire protector.



'J. F. JOHNSON.

PNEUMATIC RUBBER TIRE PROTECTOR.

AHLIGATION FILED MAR. 25, 1912v 1,036,251 Patented Aug. 20, 1 912.

Qwuewboztnsirnn srit'rns Pei JOHN F. JGHNSON OE JAMEtSTO'WN NE?! 3632 1NEUMATICRUBBER-TIRE PRGI'ECTOR.

1 ,oaoesi.

Application filer! March 25, 1912.

Specification of Letters Eatentl Patented its 725}, 1912.

Serial No. 686,138.

'protertors for pneiunatir tires. and the ole jeet of my improvement is to provide a tire proteiztor which has a series of u m-interlappin'; steel plates around the trend. which steel plates areheld in plare and permitted outward, or inward movement by means at a plurality of series of link plates \\'lilt'll hold said plates in line, yet permit the tire to flatten out and return to round normal form without sprii'ining the ronnertii'e link plates permanently out oi shape. said link plates immediately returning to normal pw sition when exterior pressure is removed from the tire; and the invention consists in the construction and combination of the parts as shown in this speeitleatiou and the accompanying drawings and pointed out in the claims.

in the drawings, Figure l is an elevation of a portion of a tire attached to a wheel rim with the armor attached, a portion 0 one of the steel tread plates bein;- brolteu away to show the link connection tliereloi.

Fig. 2 isa lengthwise sectional view of a portion of the armor for the tire showing the inner side of the conneetive link plates for holdingthe tread plates in plaee. Fig. 3 is a crosswise sectional view of the profactor at line X X in Fig. 4, showing the construction and arrangement of the parts. Fig. 4 is a plan view of a portion of the tread of the protector.

Like numerals of reference refer to corresponding parts in the several views.

The numeral 10 designates the wheel rim and the numeral 11 the rubber tire.

The tire protector consists of a series of tread plates 12 which are placed around the tire edge to edge and are made of steel plates ourved to fit crosswise upon the pneumatic tire. The plates 12 are usually provided withantiskidding ealksl lll which are at taehed to the plates 12 preferably in the oppositely diagonal position shown in Fig. 4. so that said ealks would obtain the largest possible hold upon the rmiclwa-y thereby troni supp: upon the i x l d to the The llllll lillti'lti held in position upon the tire. 11 )y no. of {no routinuons series of eireinnteren interlapp nat'ed by to tend around trh side series of radial or 1 \Ylil ll ronneri. the lint: plates ll and 15 to the tread plates 12 hese three series of link pl; es are pr: erabl made of a thin sprins: nit-t as. for example, spring sheet bras or s *el. which quiekly returns to it ormal shape even when bent there front man a 'lhese thin connective link plate. 1 i ii do not need to be llllth as the ii since their oiliee only to hold zl .trs l; in position up n the tire. of the tire also and the arrar ill oi 1 n'iultiple series of linlt plat s is sueh that the draw of the dilleren'i parts upon one another aids in the return shape around the tire.

The zll'tlilfltlll lll oi the three sets of link plates is as follows: The seriesot linl: plates it are of a r-lllll('i.iit ltllfi'lll and breadth to tit elosely within he ends of the tread plates 12 and lie pirolallY connected thereto by ventrally plat-ed rivets ti which rivets also pi' .'otall hold the outer ends of he radial llllli plates lt' besides holding the interlappinn ends at the link plates 1-1. The shieldshaped liult plates '15 are similarly lapped. preterabl x' in the opposite direction from the link plates ll. and pii'otally C()il [weird to one another by means of the rivets l8 \\'lllt'll rii'ets 15 also pivotally hold the inner ends oi the radial link p ates lt3.- The outer ends of the radial link plates it) extend within the inner side of the ends oi the tread plates .12 between said tread plates 1 and the link-plates ll. and the inner ends of the radial linlt plates to extend to the outer side of the link plates 17. thus ruinpletlng a dou bleseriesotrireuiuterent al link plates Ll and 15 and of radial or crosswise eonneetive link plates 16, the two rivets l7 and 18 being placed radially in respect. to the wheel and aboutniidway of the width of each end of the tread plates 12' so that each tread plate 12 is held firmly in position, yet permitted independentratlial outward orv insaid parts to their normal circumferential link plates on each ward movement, as shown in Fig. "2-; one of l the plates 12 being shown as having moved outward from the others thereby drawing 1 the attached link plates out of line. Should i the tread plate 12, Which is shown pushed out, have been pushed inward, it would have pushed the link plates 15 into the position shown in dotted line in Fig.2l It will accordingly be seen that-the multiple I series of link plates holdtheitrcad plates l firmly in line, yet permitthemovement of said tread plates without interlapping upon one another and thereby being bent out of shape, the connective links being so attached as to draw all the parts into normal round tire form as soon as terior pressure is removed.

I claim as new:

1. A device of prising a periphery the ex the class described comseries of tread plates to fit thel of the tire, a double series ofl side of i said tread plates, and a series ofradial cross the on each side link plates pii'otally connecting said double series of circumferential link tread plates.

2. A device oi the class described comprising a series of non-intcrlapping tread plates to fit the periphery of a tire, a series of circumferential interla 'iping link plates pivotally connecting the ends of said tread plates, a second series of interlap 'iing circuniferential link plates alongside the first series of said link plates, and a third series of crosswise link plates pivotally connected I to both of said series of circumferential link plates and to the ends of said tread plates of the tire to hold said tread plates in position.

In testimony whereof I atlix my signature in presence of two witnesses.

JOHN F. JOHNSON.

\Vitnesses JOSEPH E. JGHNSON, \V LuAM R. JOHNSON.

plates and said 

